Efektivitas Beberapa Konsentrasi Ekstrak Tepung Daun Gamal (Gliricidia Sepium…

ABSTRACT Oryctes rhinoceros is the main pest that attacks oil palm plantations from pre-seedling to mature stage. Control of Oryctes rhinoceros at the farm level still uses chemical insecticides, so it is necessary to use other safe and environmentally friendly control methods. An effective and friendly way to control the environment is by using a pesticide from the plant-based Gamal leaf (Glir…